For the class of Orlicz-Lorentz spaces defined by N-functions, it has been shown that the order-continuous subspaces \((\Lambda _{\varphi ,w})_a\)  and \((\lambda _{\varphi ,w})_a\)  are M-ideals in \(\Lambda _{\varphi ,w}\)  and \(\lambda _{\varphi ,w}\) , respectively [1]}. Here we extend these results to a broader class of Orlicz-Lorentz function and sequence spaces by using the relationship between M-ideals and intersection of balls. Our results generalize the analogous results on Orlicz function and sequence spaces in [2]}.
